protected void logParams() {
   Enumeration en = req.getParameterNames();
   while (en.hasMoreElements()) {
     String name = (String) en.nextElement();
     String vals[];
     String dispval;
     if (StringUtil.indexOfIgnoreCase(name, "passw") >= 0) {
       dispval = req.getParameter(name).length() == 0 ? "" : "********";
     } else if (log.isDebug2() && (vals = req.getParameterValues(name)).length > 1) {
       dispval = StringUtil.separatedString(vals, ", ");
     } else {
       dispval = req.getParameter(name);
     }
     log.debug(name + " = " + dispval);
   }
 }